diff --git a/.github/workflows/bump.yml b/.github/workflows/bump.yml
new file mode 100644
index 0000000..99649cd
--- /dev/null
+++ b/.github/workflows/bump.yml
@@ -0,0 +1,87 @@
+name: Bump package version
+on:
+  workflow_dispatch:
+    inputs:
+      dry-run:
+        type: boolean
+        description: Only output new version number, no actual change.
+        required: false
+      rule:
+        type: choice
+        description: Version bump level
+        required: true
+        options:
+        - major
+        - minor
+        - patch
+        - premajor
+        - preminor
+        - prepatch
+        - prerelease
+        - "prerelease --next-phase"
+
+  workflow_call:
+    inputs:
+      dry-run:
+        type: boolean
+        description: Only output new version number, no actual change.
+        required: false
+      rule:
+        type: string
+        description: Version bump level
+        required: true
+    outputs:
+      bumpmsg:
+        description: Message created by the version bump.
+        value: ${{ jobs.bump.outputs.bumpmsg }}
+
+jobs:
+  bump:
+    name: Bump version number
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    outputs:
+      bumpmsg: ${{ steps.bumping.outputs.BUMP_MSG }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+
+      - name: Set up Poetry
+        uses: abatilo/actions-poetry@v2
+        with:
+          poetry-version: "1.7.0"
+
+      - name: Bump package Version using Poetry
+        id: bumping
+        env:
+          RULE: ${{ inputs.rule }}
+          DRY: ${{ inputs.dry-run && '--dry-run' || '' }}
+        run: echo "BUMP_MSG=$(poetry version $DRY $RULE)" >> $GITHUB_OUTPUT
+
+      - name: Output debug msg
+        if: inputs.dry-run
+        env:
+          BUMP_MSG: ${{ steps.bumping.outputs.BUMP_MSG }}
+        run: |
+          echo "## $BUMP_MSG" >> $GITHUB_STEP_SUMMARY
+          echo "Dry run only, no actual modification made." >> $GITHUB_STEP_SUMMARY
+
+      - name: Commit changes
+        # could also use https://github.com/stefanzweifel/git-auto-commit-action instead
+        if: ${{ ! inputs.dry-run }}
+        env:
+          BUMP_MSG: ${{ steps.bumping.outputs.BUMP_MSG }}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git commit -am "$BUMP_MSG"
+          git push
+          echo "## $BUMP_MSG" >> $GITHUB_STEP_SUMMARY
+          echo "Successfully committed and pushed version bump." >> $GITHUB_STEP_SUMMARY
diff --git a/.github/workflows/publish_pypi.yml b/.github/workflows/publish_pypi.yml
index f38a007..8b6b793 100644
--- a/.github/workflows/publish_pypi.yml
+++ b/.github/workflows/publish_pypi.yml
@@ -31,10 +31,17 @@ jobs:
           name: distribution
           path: dist/
 
+      - name: Upload release attachment
+	uses: shogo82148/actions-upload-release-asset@v1
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: dist/*
+
   publish:
     name: Publish package to PyPI
     runs-on: ubuntu-latest
     needs: build
+    if: needs.build.result == "success"
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -60,16 +67,13 @@ jobs:
           POETRY_PYPI_TOKEN_PYPI: ${{ secrets.PYPI_TOKEN }}
         run: poetry publish
 
-  upload:
-    name: Upload dist to release
+  bump:
+    name: Bump to dev version
     runs-on: ubuntu-latest
-    needs: build
+    needs: publish
+    if: needs.publish.result == "success"
     steps:
-      - name: Retrieve distribution files
-        uses: actions/download-artifact@v3
+      - name: Checkout code
+        uses: ./.github/workflows/bump.yml
         with:
-          name: distribution
-          path: dist/
-
-      - name: Upload release attachment
-        run: echo ${{ github.event.release.upload_url }}
+          rule: prerelease
diff --git a/pyproject.toml b/pyproject.toml
index a638912..5cbc41f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "prepipy"
-version = "0.7.1a2"
+version = "0.7.1a3"
 description = "Provides the ability to stretch and combine astronomical images from multiple bands into (RGB) colour images."
 authors = ["Fabian Haberhauer <fabian.haberhauer@univie.ac.at>"]
 maintainers = ["teutoburg <ghost@instruct.at>"]